| Assist Group | Cape Town | Property Advisory | |
| Assistant24Seven | Paarl | Personal Assistant Services | |
| Association for Visual Arts | AVA Gallery | Cape Town | Art gallery | |
| Association of B-Bbee Professionals (ABP) | | Non-Profit Membership Association Professional Bod | |
| Assured Bookkeeping | Pietermaritzburg | Accounting, Bookkeeping, tax, Payroll Services | |
| Asterion Technologies | Pretoria | ICT,Electronic Security, Biometric Access Control | |
| Astor Motor Recruitment | Cape Town | Automotive Recruitment | |
| Astounding MMM Website Script Software | Century City | MMM Software Development | |
| AstraFin | | Accounting | |
| ASTRAL STUDIOS | Johannesburg | Television and corporate production | |
| Astro Brake | | Services | |
| Astro Thoughts | | Online horoscope matching is a definite solution. | |
| Astrology Services Online by Rudra | | 000 | |
| Astrologyscholar | | digital | |
| Astute Media | Cape Town | Strategy, planning, buying, Auditing, Procurement, | |
| Astutemedia | Cape Town | Website, Social, Design.Media planning, Media Buyi | |
| Asunim Solar South Africa | Ekurhuleni | PV solar energy EPC and wholesale | |
| Atang Recruitment Solutions | Pretoria | We specialize in multiple industries recruitment. | |
| Atavic Engineering | Germiston | General and specialised engineering | |
| Atd Security & Plant Hire | Johannesburg | Physical Guarding,street Patrols,undercover,Escort | |
| Atelier Brand Consultancy | Swellendam | Consulting, Branding, Graphic Design, Digital | |
| Atholl Munday College | Durban | Electrical, Welding and Mechanical learnerships | |
| Atico India | | Educational Lab Equipment form renowned suppliers | |
| Ativo ICT(PTY) LTD | Johannesburg | Outsourced IT Services | |
| Atkv Goudini Spa | Rawsonville | Accommodation, Conference and Weddings | |
| Atlanta Printers | Roodepoort | Printing | |
| Atlanta Removals | Pietermaritzburg | Atlanta Removals for all your minor or major moves | |
| Atlantic Core Projects | Cape Town | Concrete core drilling/concrete cutting services | |
| Atlantic Driving School | | atlanticdrivingschool | |
| Atlas Bear | Bedford Gardens | Wholesale | |
| Atlas Printers | Durban | Printing | |
| Atlassia | | Real Estate | |
| Atmosphere Communications | Cape Town | Public Relations, Social Media Campaigns, Brand PR | |
| Atom Signs | Johannesburg | Signage,Branding;Vehicle graphics,Banners etc | |
| Atomic Access | Cape Town | Fibre Internet | |
| Atomic Branding PTY LTD | Johannesburg | Automated Screen Printing/Promotional Clothing | |
| Atomic Media | Gqeberha | Advertising Agency | |
| Atrax Logistics | Isando | Logistics & Ecommerce Fulfilment | |
| AtripleA Recruitment | Pretoria | Recruitment | |
| AtripleA Recruitment & Temps | Pretoria | Recruitment, Temps, Perm,Jobs | |
| AtripleA Recruitment and Temps | Pretoria | Recruitment Perm and Temps | |
| ATS AFRICA | Pretoria | Facilities Maintenance. | |
| Attention2Detailing | Kitchener | Car detailing | |
| AtticSalt | Web Design | Hosting | Graphic Design | Johannesburg | Graphic Web Design Domains Hosting | |
| Attuned Consulting | Johannesburg | Psychology - Personal & Professional Guidance | |
| ATV Canli Izle | | ATV Canli Izle Canli TV Izle | |
| Aucor Property | Johannesburg | Real Estate Auction Experts | |
| Audio and Video Transfer Services | Cape Town | Audio, video and film transfering | |
| Audio Militia | Johannesburg | Original composition,final mix,radio,sound design | |
| Audio Visual Lab | Durban | Marketing | |
| AUDIOBOX Sound Design | Cape Town | Digital Audio Post Production Facility | |
| Audioscapes Corporate Broadcasting | Cape Town | Retail Radio | |
| Audiotorch | Pretoria | Sound lighting for events | |
| Audiovisual Technology Hire South Africa | Johannesburg | Audiovisual Event Technology Hire South Africa | |
| Augment and Recruit | Johannesburg | IT Consulting, Staffing and Recruitment | |
| Augment HR | Cape Town | HR & Talent Consulting | |
| Augustine & Co | Melbourne | Immigration Lawyer | |
| AULAX DISTRIBUTORS | Cape Town | IATA/UN packaging for medical samples | |
| Aum Voice Artists | Durban | Voice over recording. Voice artists.Sound and vide | |
| AumRecording | Durban | Recording,editing,mastering,production,music | |
| Aura Capital Consultancy | Jeffreys bay | Business & media management and brand ambassading | |
| Aura Skin Care Clinic | Johannesburg | Skin care clinic | |
| Aurik Business | Johannesburg | Business Growth Services and Funding | |
| Aurora Outdoors | | Home Improment | |
| Austi LED Corp | | China,Shenzhen | |
| Austral Salon | Columbia | Austral Salon | |
| Australia Disability Services | | Australia Disability Services | |
| Australian Family Dental | Broadmeadows | Dental care | |
| Authors Crew UK | | Authors Crew UK | |
| Auto Glass Cape Town | Cape Town | Auto Glass Cape Town | |
| Auto Thread Repair | Derdepark | Mobile Stripped Thread Repair | |
| Autoglassdallas | | Mid Cities Auto Glass | |
| Autograph Management | Cape Town | Business Development Digital Media Virtual Events | |
| Autographics | Cape Town | Web Design and Hosting | |
| Automotive Garage Supplies | Cape Town | Automotive Workshop Equipment | |
| Automutive Services Heddon Greta | Heddon Greta | Automutive services Heddon Greta | |
| Autonomous Pty Ltd | Johannesburg | Graphic Design/Branding/Digital/Marketing | |
| autoOnes.com | | Auction Sheet Verification | autoOnes.com | |
| Autoway Car Hire | Swellendam | Car rental in Cape Town | |
| AutoX | Johannesburg | Manufacture & distribute automotive batteries | |
| AUX Studio | Cape Town | user experience, rapid prototyping, usability | |
| Auxo Digital | Midrand | Software Development | |
| AV Group | | Marketing | |
| AV Publishing | Pretoria | Book Publishing | |
| AV Transfers - Audio Video Cine Transfer services | Cape Town | 8mm and 16mm cine film telecine service | |
| Av2 Systems | Cape Town | Filemaker Pro sales and support | |
| Avalance Computer Services | Cape Town | Computer repairs, sales, upgrades, network install | |
| Avatar.DBN | | Design Studio, Digital, Social Media, Animation | |
| AVC -Audio Visual Centre | Northriding | AV Equipment Rentals | |
